aboutsummaryrefslogtreecommitdiffstats
path: root/include/hw/xen/xen_common.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/hw/xen/xen_common.h')
-rw-r--r--include/hw/xen/xen_common.h410
1 files changed, 410 insertions, 0 deletions
diff --git a/include/hw/xen/xen_common.h b/include/hw/xen/xen_common.h
new file mode 100644
index 00000000..ed5fd3e1
--- /dev/null
+++ b/include/hw/xen/xen_common.h
@@ -0,0 +1,410 @@
+#ifndef QEMU_HW_XEN_COMMON_H
+#define QEMU_HW_XEN_COMMON_H 1
+
+#include "config-host.h"
+
+#include <stddef.h>
+#include <inttypes.h>
+
+#include <xenctrl.h>
+#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 420
+# include <xs.h>
+#else
+# include <xenstore.h>
+#endif
+#include <xen/io/xenbus.h>
+
+#include "hw/hw.h"
+#include "hw/xen/xen.h"
+#include "hw/pci/pci.h"
+#include "qemu/queue.h"
+#include "trace.h"
+
+/*
+ * We don't support Xen prior to 3.3.0.
+ */
+
+/* Xen before 4.0 */
+#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 400
+static inline void *xc_map_foreign_bulk(int xc_handle, uint32_t dom, int prot,
+ xen_pfn_t *arr, int *err,
+ unsigned int num)
+{
+ return xc_map_foreign_batch(xc_handle, dom, prot, arr, num);
+}
+#endif
+
+
+/* Xen before 4.1 */
+#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 410
+
+typedef int XenXC;
+typedef int XenEvtchn;
+typedef int XenGnttab;
+
+# define XC_INTERFACE_FMT "%i"
+# define XC_HANDLER_INITIAL_VALUE -1
+
+static inline XenEvtchn xen_xc_evtchn_open(void *logger,
+ unsigned int open_flags)
+{
+ return xc_evtchn_open();
+}
+
+static inline XenGnttab xen_xc_gnttab_open(void *logger,
+ unsigned int open_flags)
+{
+ return xc_gnttab_open();
+}
+
+static inline XenXC xen_xc_interface_open(void *logger, void *dombuild_logger,
+ unsigned int open_flags)
+{
+ return xc_interface_open();
+}
+
+static inline int xc_fd(int xen_xc)
+{
+ return xen_xc;
+}
+
+
+static inline int xc_domain_populate_physmap_exact
+ (XenXC xc_handle, uint32_t domid, unsigned long nr_extents,
+ unsigned int extent_order, unsigned int mem_flags, xen_pfn_t *extent_start)
+{
+ return xc_domain_memory_populate_physmap
+ (xc_handle, domid, nr_extents, extent_order, mem_flags, extent_start);
+}
+
+static inline int xc_domain_add_to_physmap(int xc_handle, uint32_t domid,
+ unsigned int space, unsigned long idx,
+ xen_pfn_t gpfn)
+{
+ struct xen_add_to_physmap xatp = {
+ .domid = domid,
+ .space = space,
+ .idx = idx,
+ .gpfn = gpfn,
+ };
+
+ return xc_memory_op(xc_handle, XENMEM_add_to_physmap, &xatp);
+}
+
+static inline struct xs_handle *xs_open(unsigned long flags)
+{
+ return xs_daemon_open();
+}
+
+static inline void xs_close(struct xs_handle *xsh)
+{
+ if (xsh != NULL) {
+ xs_daemon_close(xsh);
+ }
+}
+
+
+/* Xen 4.1 */
+#else
+
+typedef xc_interface *XenXC;
+typedef xc_evtchn *XenEvtchn;
+typedef xc_gnttab *XenGnttab;
+
+# define XC_INTERFACE_FMT "%p"
+# define XC_HANDLER_INITIAL_VALUE NULL
+
+static inline XenEvtchn xen_xc_evtchn_open(void *logger,
+ unsigned int open_flags)
+{
+ return xc_evtchn_open(logger, open_flags);
+}
+
+static inline XenGnttab xen_xc_gnttab_open(void *logger,
+ unsigned int open_flags)
+{
+ return xc_gnttab_open(logger, open_flags);
+}
+
+static inline XenXC xen_xc_interface_open(void *logger, void *dombuild_logger,
+ unsigned int open_flags)
+{
+ return xc_interface_open(logger, dombuild_logger, open_flags);
+}
+
+/* FIXME There is now way to have the xen fd */
+static inline int xc_fd(xc_interface *xen_xc)
+{
+ return -1;
+}
+#endif
+
+/* Xen before 4.2 */
+#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 420
+static inline int xen_xc_hvm_inject_msi(XenXC xen_xc, domid_t dom,
+ uint64_t addr, uint32_t data)
+{
+ return -ENOSYS;
+}
+/* The followings are only to compile op_discard related code on older
+ * Xen releases. */
+#define BLKIF_OP_DISCARD 5
+struct blkif_request_discard {
+ uint64_t nr_sectors;
+ uint64_t sector_number;
+};
+#else
+static inline int xen_xc_hvm_inject_msi(XenXC xen_xc, domid_t dom,
+ uint64_t addr, uint32_t data)
+{
+ return xc_hvm_inject_msi(xen_xc, dom, addr, data);
+}
+#endif
+
+void destroy_hvm_domain(bool reboot);
+
+/* shutdown/destroy current domain because of an error */
+void xen_shutdown_fatal_error(const char *fmt, ...) GCC_FMT_ATTR(1, 2);
+
+#ifdef HVM_PARAM_VMPORT_REGS_PFN
+static inline int xen_get_vmport_regs_pfn(XenXC xc, domid_t dom,
+ xen_pfn_t *vmport_regs_pfn)
+{
+ int rc;
+ uint64_t value;
+ rc = xc_hvm_param_get(xc, dom, HVM_PARAM_VMPORT_REGS_PFN, &value);
+ if (rc >= 0) {
+ *vmport_regs_pfn = (xen_pfn_t) value;
+ }
+ return rc;
+}
+#else
+static inline int xen_get_vmport_regs_pfn(XenXC xc, domid_t dom,
+ xen_pfn_t *vmport_regs_pfn)
+{
+ return -ENOSYS;
+}
+#endif
+
+/* Xen before 4.5 */
+#if CONFIG_XEN_CTRL_INTERFACE_VERSION < 450
+
+#ifndef HVM_PARAM_BUFIOREQ_EVTCHN
+#define HVM_PARAM_BUFIOREQ_EVTCHN 26
+#endif
+
+#define IOREQ_TYPE_PCI_CONFIG 2
+
+typedef uint16_t ioservid_t;
+
+static inline void xen_map_memory_section(XenXC xc, domid_t dom,
+ ioservid_t ioservid,
+ MemoryRegionSection *section)
+{
+}
+
+static inline void xen_unmap_memory_section(XenXC xc, domid_t dom,
+ ioservid_t ioservid,
+ MemoryRegionSection *section)
+{
+}
+
+static inline void xen_map_io_section(XenXC xc, domid_t dom,
+ ioservid_t ioservid,
+ MemoryRegionSection *section)
+{
+}
+
+static inline void xen_unmap_io_section(XenXC xc, domid_t dom,
+ ioservid_t ioservid,
+ MemoryRegionSection *section)
+{
+}
+
+static inline void xen_map_pcidev(XenXC xc, domid_t dom,
+ ioservid_t ioservid,
+ PCIDevice *pci_dev)
+{
+}
+
+static inline void xen_unmap_pcidev(XenXC xc, domid_t dom,
+ ioservid_t ioservid,
+ PCIDevice *pci_dev)
+{
+}
+
+static inline int xen_create_ioreq_server(XenXC xc, domid_t dom,
+ ioservid_t *ioservid)
+{
+ return 0;
+}
+
+static inline void xen_destroy_ioreq_server(XenXC xc, domid_t dom,
+ ioservid_t ioservid)
+{
+}
+
+static inline int xen_get_ioreq_server_info(XenXC xc, domid_t dom,
+ ioservid_t ioservid,
+ xen_pfn_t *ioreq_pfn,
+ xen_pfn_t *bufioreq_pfn,
+ evtchn_port_t *bufioreq_evtchn)
+{
+ unsigned long param;
+ int rc;
+
+ rc = xc_get_hvm_param(xc, dom, HVM_PARAM_IOREQ_PFN, &param);
+ if (rc < 0) {
+ fprintf(stderr, "failed to get HVM_PARAM_IOREQ_PFN\n");
+ return -1;
+ }
+
+ *ioreq_pfn = param;
+
+ rc = xc_get_hvm_param(xc, dom, HVM_PARAM_BUFIOREQ_PFN, &param);
+ if (rc < 0) {
+ fprintf(stderr, "failed to get HVM_PARAM_BUFIOREQ_PFN\n");
+ return -1;
+ }
+
+ *bufioreq_pfn = param;
+
+ rc = xc_get_hvm_param(xc, dom, HVM_PARAM_BUFIOREQ_EVTCHN,
+ &param);
+ if (rc < 0) {
+ fprintf(stderr, "failed to get HVM_PARAM_BUFIOREQ_EVTCHN\n");
+ return -1;
+ }
+
+ *bufioreq_evtchn = param;
+
+ return 0;
+}
+
+static inline int xen_set_ioreq_server_state(XenXC xc, domid_t dom,
+ ioservid_t ioservid,
+ bool enable)
+{
+ return 0;
+}
+
+/* Xen 4.5 */
+#else
+
+static inline void xen_map_memory_section(XenXC xc, domid_t dom,
+ ioservid_t ioservid,
+ MemoryRegionSection *section)
+{
+ hwaddr start_addr = section->offset_within_address_space;
+ ram_addr_t size = int128_get64(section->size);
+ hwaddr end_addr = start_addr + size - 1;
+
+ trace_xen_map_mmio_range(ioservid, start_addr, end_addr);
+ xc_hvm_map_io_range_to_ioreq_server(xc, dom, ioservid, 1,
+ start_addr, end_addr);
+}
+
+static inline void xen_unmap_memory_section(XenXC xc, domid_t dom,
+ ioservid_t ioservid,
+ MemoryRegionSection *section)
+{
+ hwaddr start_addr = section->offset_within_address_space;
+ ram_addr_t size = int128_get64(section->size);
+ hwaddr end_addr = start_addr + size - 1;
+
+ trace_xen_unmap_mmio_range(ioservid, start_addr, end_addr);
+ xc_hvm_unmap_io_range_from_ioreq_server(xc, dom, ioservid, 1,
+ start_addr, end_addr);
+}
+
+static inline void xen_map_io_section(XenXC xc, domid_t dom,
+ ioservid_t ioservid,
+ MemoryRegionSection *section)
+{
+ hwaddr start_addr = section->offset_within_address_space;
+ ram_addr_t size = int128_get64(section->size);
+ hwaddr end_addr = start_addr + size - 1;
+
+ trace_xen_map_portio_range(ioservid, start_addr, end_addr);
+ xc_hvm_map_io_range_to_ioreq_server(xc, dom, ioservid, 0,
+ start_addr, end_addr);
+}
+
+static inline void xen_unmap_io_section(XenXC xc, domid_t dom,
+ ioservid_t ioservid,
+ MemoryRegionSection *section)
+{
+ hwaddr start_addr = section->offset_within_address_space;
+ ram_addr_t size = int128_get64(section->size);
+ hwaddr end_addr = start_addr + size - 1;
+
+ trace_xen_unmap_portio_range(ioservid, start_addr, end_addr);
+ xc_hvm_unmap_io_range_from_ioreq_server(xc, dom, ioservid, 0,
+ start_addr, end_addr);
+}
+
+static inline void xen_map_pcidev(XenXC xc, domid_t dom,
+ ioservid_t ioservid,
+ PCIDevice *pci_dev)
+{
+ trace_xen_map_pcidev(ioservid, pci_bus_num(pci_dev->bus),
+ PCI_SLOT(pci_dev->devfn), PCI_FUNC(pci_dev->devfn));
+ xc_hvm_map_pcidev_to_ioreq_server(xc, dom, ioservid,
+ 0, pci_bus_num(pci_dev->bus),
+ PCI_SLOT(pci_dev->devfn),
+ PCI_FUNC(pci_dev->devfn));
+}
+
+static inline void xen_unmap_pcidev(XenXC xc, domid_t dom,
+ ioservid_t ioservid,
+ PCIDevice *pci_dev)
+{
+ trace_xen_unmap_pcidev(ioservid, pci_bus_num(pci_dev->bus),
+ PCI_SLOT(pci_dev->devfn), PCI_FUNC(pci_dev->devfn));
+ xc_hvm_unmap_pcidev_from_ioreq_server(xc, dom, ioservid,
+ 0, pci_bus_num(pci_dev->bus),
+ PCI_SLOT(pci_dev->devfn),
+ PCI_FUNC(pci_dev->devfn));
+}
+
+static inline int xen_create_ioreq_server(XenXC xc, domid_t dom,
+ ioservid_t *ioservid)
+{
+ int rc = xc_hvm_create_ioreq_server(xc, dom, 1, ioservid);
+
+ if (rc == 0) {
+ trace_xen_ioreq_server_create(*ioservid);
+ }
+
+ return rc;
+}
+
+static inline void xen_destroy_ioreq_server(XenXC xc, domid_t dom,
+ ioservid_t ioservid)
+{
+ trace_xen_ioreq_server_destroy(ioservid);
+ xc_hvm_destroy_ioreq_server(xc, dom, ioservid);
+}
+
+static inline int xen_get_ioreq_server_info(XenXC xc, domid_t dom,
+ ioservid_t ioservid,
+ xen_pfn_t *ioreq_pfn,
+ xen_pfn_t *bufioreq_pfn,
+ evtchn_port_t *bufioreq_evtchn)
+{
+ return xc_hvm_get_ioreq_server_info(xc, dom, ioservid,
+ ioreq_pfn, bufioreq_pfn,
+ bufioreq_evtchn);
+}
+
+static inline int xen_set_ioreq_server_state(XenXC xc, domid_t dom,
+ ioservid_t ioservid,
+ bool enable)
+{
+ trace_xen_ioreq_server_state(ioservid, enable);
+ return xc_hvm_set_ioreq_server_state(xc, dom, ioservid, enable);
+}
+
+#endif
+
+#endif /* QEMU_HW_XEN_COMMON_H */
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-02 12:53:33 +0000